reset session scope managed-bean properties to default

[Franz van Betteraey]

Hi,

I am looking for a solution to reset the properties of a session scope managed bean to the default values I specified in faces-config.xml (<managed-property>). I want to use this in a "reset to default" command button.

Any help would be appreciated!

Thank's and best regards
Klaus

[Ryan Lubke]

Can't you just remove the session bean from scope. The next time it is referenced it will be recreated.

[Franz van Betteraey]

Thanks for advice. Your solution resolved parts of my problem.

My problem is, that the action which should reset the bean properties is an action on the bean which I want to reset

<h:commandButton value="#{msg.reset}" action="#{invocation.reset}" immediate="true" />

The action-code

public String reset() {
  log.info("***** RESET START...");
  FacesContext fc = FacesContext.getCurrentInstance();
  if (fc.getExternalContext().getSessionMap().containsKey("invocation")) {
    log.debug("Remove bean from session...");
    fc.getExternalContext().getSessionMap().remove("invocation");
  }
}

did reset the bean-properties but obviously not the components (values) which were bound to the properties. So I had to reset the components to (otherwise the old values were displayed afer render response).

The code

 
  private UIInput uiUsername;
  private UIInput uiPassword;
 
  public String reset() {
    
    log.info("***** RESET START...");
    FacesContext fc = FacesContext.getCurrentInstance();
    if (fc.getExternalContext().getSessionMap().containsKey("invocation")) {
      log.debug("Remove bean from session...");
      fc.getExternalContext().getSessionMap().remove("invocation");
    }   
    log.debug("Reset Components...");
    uiUsername.resetValue();
    uiUsername.resetValue();
    ..... 
    return null;
  }

did it finally. Im not sure if this is the way to do it.

I am also a bit confused about the relationship between bean-property-values and component values and wether a change of the one side affects the other side. Changing the bean property in code does not necessarily also changes the components value seen on the jsp-Page. Any explanation on this topic would be helpfull for me.

Thanks anyway!

[ June 21, 2007: Message edited by: Klaus Classen ]
[ June 21, 2007: Message edited by: Klaus Classen ]

[Simon Prinzleve]

Hi Klaus,

I had the same problem a while ago.
It turned out that the answer is supersimple: Just reset the attributes you want to refresh.
Or am I missing out something?

Detailed solution here:
http://liferay-portlets.blogspot.com/2009/05/jsf-refresh-bean-and-get-different.html